The Optifuel Fuel Saver is a plug-and-play OBD2 chip designed to help drivers improve fuel efficiency and overall car engine performance. This article explores the root causes of fuel inefficiency, ...
Dave exposes the eco (Nitro) OBD2 Fuel Saver as a complete SCAM! Also known as the OptiFuel. They are supposed to talk to the car's ecu via the can bus on the OBD2 connector, but does it even do that?
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